POM-C GF25 vs POM-C GF30
Polymer · grade comparison
POM-C GF25 and POM-C GF30 are both polymer grades, compared here in the GF30 condition. POM-C GF30 is the stronger of the two: tensile strength 130 MPa (18.9 ksi) against 115 MPa (16.7 ksi) for POM-C GF25, about 13% more. In exchange, POM-C GF25 is the more ductile: elongation 3% versus 2.5% for POM-C GF30, and POM-C GF25 is harder (88 Shore D vs 81 Shore D). POM-C GF30 is stiffer (9 GPa vs 8.5 GPa). On the shop floor, POM-C GF25 machines more easily (very good vs fair).
POM-C GF25Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
POM-C GF30Choose it when strength drives the design.
POM-C GF25 vs POM-C GF30: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all polymer grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all polymer grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Elongation at Break
Compressive Strength
Compressive Modulus
Flexural Strength
Hardness, Shore D
Hardness, Rockwell R
Bulk Modulus
Yield Strength (0.2% offset)
Fracture Toughness (K_IC)
Same in both: Flexural Modulus 8 GPa1.2 Msi · Shear Strength 60 MPa8.7 ksi · Izod Impact, Notched 60 J/m1.1 ft·lbf/in · Hardness, Rockwell M 90 HRM
Physical
Density and transition temperatures.
Density
Melting Temperature (Tm)
Water Absorption (24 h)
Water Absorption (Saturation)
Refractive Index
Same in both: Glass Transition (Tg) -60°C-76 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Max Service Temperature (continuous)
Min Service Temperature
Heat Deflection Temp. @ 0.45 MPa
Heat Deflection Temp. @ 1.8 MPa
Vicat Softening Point (B50)
Limiting Oxygen Index
Same in both: Thermal Expansion (CTE, 20–100 °C) 35 µm/m·K19.4 µin/in·°F · Max Service Temperature (short-term) 140°C284 °F
Electrical
Conductivity and insulation.
Dielectric Strength
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Same in both: Electrical Resistivity 1×10¹² Ω·m3.94×10¹⁹ µΩ·in · Volume Resistivity 1×10¹⁴ Ω·cm · Surface Resistivity 1×10¹⁴ Ω · Comparative Tracking Index (CTI) 600 V
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
UV / Weathering Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Polishability
Mold Shrinkage
Melt Flow Rate
Processing Melt Temperature (typ.)
Same in both: Mold Temperature (typ.) 90°C194 °F
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Same in both: Typical Recycled Content 0%
Strength versus weight
Yield strength against density for every polymer grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | POM-C GF25 | POM-C GF30 |
|---|---|---|
| CNC machining | — | Yes |
| Sheet metal | — | Yes |
| Injection molding | — | Yes |
| Default condition | — | Unfilled |
| Relative cost | $$ Standard | $$ Standard |
| Min. machined wall | — | 0.5 mm |
| Best machined surface | — | Ra 0.8 µm |
| Chrome Plating (Plastic) | — | Yes |
| EMI Shielding Coating | — | Yes |
| Painting | — | Yes |
| Soft Touch Coating | — | Yes |
| Spray Painting | — | Yes |
| UV Coating | — | Yes |
POM-C GF25 vs POM-C GF30 — frequently asked
Is POM-C GF30 stronger than POM-C GF25?
Yes. POM-C GF30 has a typical tensile strength of 130 MPa (18.9 ksi) against 115 MPa (16.7 ksi) for POM-C GF25 — about 13% more.
Which is cheaper, POM-C GF25 or POM-C GF30?
Both sit in the same relative cost tier ($$, standard); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, POM-C GF25 or POM-C GF30?
POM-C GF25. Its machinability rates very good (75/100) against fair (50/100) for POM-C GF30; for welding the order is POM-C GF25 first (fair, 40/100) then POM-C GF30 (fair, 35/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in POM-C GF25 and POM-C GF30 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.
Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.